US20110004398A1 - Systems and methods for providing optimal sequencing and spacing in an environment of potential wake vortices - Google Patents

Systems and methods for providing optimal sequencing and spacing in an environment of potential wake vortices Download PDF

Info

Publication number
US20110004398A1
US20110004398A1 US12/775,321 US77532110A US2011004398A1 US 20110004398 A1 US20110004398 A1 US 20110004398A1 US 77532110 A US77532110 A US 77532110A US 2011004398 A1 US2011004398 A1 US 2011004398A1
Authority
US
United States
Prior art keywords
airplane
spacing
data
wake
systems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US12/775,321
Inventor
Gregory T. Stayton
Peter J. Bobrowitz
Charles C. Manberg
II Richard D. Ridenour
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aviation Communication and Surveillance Systems LLC
Original Assignee
Aviation Communication and Surveillance Systems LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to US17604609P priority Critical
Application filed by Aviation Communication and Surveillance Systems LLC filed Critical Aviation Communication and Surveillance Systems LLC
Priority to US12/775,321 priority patent/US20110004398A1/en
Assigned to AVIATION COMMUNIATION & SURVEILLANCE SYSTEMS LLC reassignment AVIATION COMMUNIATION & SURVEILLANCE SYSTEMS LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RIDENOUR, RICHARD D., BOBROWITZ, PETER, MANBERG, CHARLES C., STAYTON, GREGORY T.
Publication of US20110004398A1 publication Critical patent/US20110004398A1/en
Application status is Pending legal-status Critical

Links

Images

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G5/00Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0004Transmission of traffic-related information to or from an aircraft
    • G08G5/0013Transmission of traffic-related information to or from an aircraft with a ground station
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G5/00Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0043Traffic management of multiple aircrafts from the ground
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G5/00Traffic control systems for aircraft, e.g. air-traffic control [ATC]
    • G08G5/0073Surveillance aids
    • G08G5/0091Surveillance aids for monitoring atmospheric conditions

Abstract

A system is delineated comprising a processor, a transceiver coupled to the processor, and memory including instructions for execution by the processor to send with the transceiver meteorological data, 4-D position data, velocity data, and time and configuration data to a provided ATC ground station.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • This application is related to and claims priority from U.S. Provisional Patent Application No. 61/176,046, as filed on May 6, 2009 and entitled “SYSTEMS AND METHODS FOR PROVIDING OPTIMAL SEQUENCING AND SPACING IN ENVIRONMENT OF POTENTIAL WAKE VORTICES,” which is hereby incorporated by reference.
  • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention
  • The present invention relates to avionics systems, and more particularly, to systems and methods for providing optimal sequencing and spacing in an environment of potential wake vortices.
  • 2. Description of the Related Art
  • Weather has a significant effect on air traffic movement from or to an airport. In particular, the potential hazards associated with wake turbulence today prevents airplane optimal separation distances from being used to increase airport traffic throughput. Air Traffic Control (ATC) does not take into account specific airplane dynamics or characteristics in combination with meteorological data to provide optimal traffic spacing. Thus, ATC currently provides larger than necessary fixed distance spacing between airplane types so wake vortex will not cause a hazardous flying condition.
  • Many new concepts such as the FAA's NextGen and Europe's SESAR using Automatic Dependent Surveillance Broadcast (ADS-B) of more accurate airplane state data (such as position, velocity, intent) to enable significant reductions in the spacing of airport traffic may not be useful unless meteorological and other data can be provided.
  • Thus, a need exists for improved systems and methods, which overcome these and other problems.
  • SUMMARY OF THE INVENTION
  • An embodiment of the present invention discloses a system comprising a processor, a transceiver coupled to the processor, and memory including instructions for execution by the processor to send with the transceiver meteorological data, 4-D position data, velocity data, and time and configuration data to a provided ATC ground station.
  • It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
  • The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate several embodiments of the invention and together with the description, serve to explain the principles of the invention.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is simplified diagram of a sequencing and spacing wake vortex system, in accordance with systems and methods consistent with the present invention.
  • DESCRIPTION OF THE EMBODIMENTS
  • Reference will now be made in detail to the present exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings.
  • This invention provides wake vortex data elements from the airplane that provides an optimized wake vortex algorithm so that the pilot and ATC can provide for more traffic throughput at the airport while maintaining the necessary safe separation distances or timing between airplane types during various meteorological conditions. This algorithm can be contained within the ground station or within the airplane, or a subset or duplicate of the algorithm can be contained within both the airplane and ground station as necessary to achieve safety and traffic throughput goals.
  • The “Sequencing and Spacing Wake Vortex System” shown below depicts one possible embodiment of this invention. Own ship and like equipped airplanes send Meteorological, 4-D Position, Velocity, Time and Configuration data to the ATC Ground Station.
  • This information is then used to determine atmospheric condition effects to the predicted or downlinked wake vortex magnitude.
  • The ATC Ground Station then computes Wake Vortex magnitude, direction, and time until dissipation of the Wake Vortex to acceptable and safe levels for every airplane sending data. The ATC Ground Station then data links this information up to the own ship airplane along with which airplane ID is to be used as the Reference Airplane for a 4D spacing “Fly To Box” used by the pilot to maintain a safe separation timing or spacing. The Reference airplane can be automatically selected on a display based on the ATC received data, or manually entered by the pilot. The pilot then flies to maintain a safe spacing.
  • In the event there is a crossing airplane or a sudden change in spacing requirements that cannot be met by the own ship airplane, an encroachment alert may occur with a potential display and/or aural advisory indicating to the pilot the 3-D or 4-D flight path-to-escape from the exposure to the potentially hazardous wake vortex from the reference airplane. If the sudden change is such that a temporary flight path change can permit “wake planning” then the Own ship airplane may be able to later meet the spacing requirements and return to its original flight path.
  • Linear time modeling of a wake can be done to indicate where in the future a rapid change in safe spacing may occur and the gradient per unit time for a decrease in spacing requirements. For this case the reference airplane would be calculating its maximum anticipated wake turbulence at some time in the future such as after reconfiguration with flaps down for landing where wake turbulence is at it's maximum and data linking this maximum anticipated wake spacing requirement with the gradient decrease in spacing versus time or distance to own ship airplane. Thus the own ship airplane would calculate the closest point of approach during its own landing phase to determine the optimal spacing time or distance. As mentioned earlier (and for other algorithmic calculations as well) this calculation may be done in whole or in part by the ATC ground station, and the information described up-linked to the own ship airplane.
  • DISPLAY DESCRIPTION
  • In addition to a display of all airborne traffic, the elements of the own ship airplane display for the Sequencing and Spacing Wake Vortex System may include the following:
  • Flight director type of display of the speed target to maintain the time or distance spacing for safe flight relative to the wake vortex being created by the reference airplane. This could include a 4_D Spacing Fly To Box or other symbolic means to indicate the 4_D position of where the airplane is to stay safely located to avoid the reference airplanes wake turbulence.
  • A numeric display of the speed target to maintain the time or distance spacing for safe flight relative to the wake vortex being created by the reference airplane.
  • A Wake Vortex Footprint displaying a 4-D area on the display for the airplane to avoid. This could include a footprint of relative altitude with textual tag or other 3-D depiction of relative altitude, range, lateral displacement and time or distance from the footprint.
  • Aural and/or visual alerting of in spacing requirements from the own ship airplane due to a crossing airplane or encroachment on the wake turbulence footprint area of the reference airplane. This alert can be used for wake turbulence planning or wake turbulence avoidance.
  • A wake turbulence planning or optimized wake turbulence avoidance maneuver advisory for 4-D maneuvering; i.e., slowing down or speeding up, climbing, descending, turning right, or turning left or any combination of the above 4-D maneuvering elements.
  • Automatic “pop-up” of the reference airplane as determined by the system. This can be determined by ATC ground algorithms and data linked to the airplane or by on-airplane algorithms.
  • Display decluttering mechanisms to reduce symbols and nomenclature on the display or to reduce the number and/or frequency of aural advisories. This may include but is not limited to display of only wake vortex information on the reference airplane or display only of hazardous wake conditions when beyond a given spacing minimum.
  • DATA ELEMENTS
  • Data elements data linked to/from the ground, own ship airplane, or other airplane as needed to achieve safety and traffic throughput goals include but are not limited to the following elements listed below:
  • Meteorological Sensor Data such as: Barometric pressure, wind speed and direction, temperature, turbulence.
  • Sequencing spacing/timing data linked from ATC or as calculated by the airplane to initially achieve optimized timing or spacing between own airplane and a reference airplane.
  • Optimized spacing or timing from own airplane that consider wake turbulence to a reference airplane.
  • Speed guidance for own airplane that consider wake turbulence relative to a reference airplane.
  • Maneuver guidance for own airplane including left/right/up/down flight paths that consider wake turbulence relative to a reference airplane.
  • Dynamic own airplane wake vortex magnitude and direction prediction based on specific airplane parameters, configuration, types, and specific flight characteristics.
  • Linear time modeled wake vortex magnitude with a scale factor per unit time based on anticipated flight dynamic changes such as airplane configuration changes (changing airplane configuration to landing with flaps at 20 degrees as an example) in “T” minutes from current wake vortex magnitude at time now. May be used during airplane crossings.
  • Airplane configuration data such as but not limited to airplane type and configuration, gear down, flap angle, angle of attack, airspeed, current weight, max weight to develop a wake factor.
  • 4D position data of each airplane—position, velocity, time to a point in space (PVT).
  • Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claim.

Claims (1)

1. A system, comprising:
a processor;
a transceiver coupled to the processor; and
memory including instructions for execution by the processor to send with the transceiver meteorological data, 4-D position data, velocity data, and time and configuration data to a provided ATC ground station.
US12/775,321 2009-05-06 2010-05-06 Systems and methods for providing optimal sequencing and spacing in an environment of potential wake vortices Pending US20110004398A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US17604609P true 2009-05-06 2009-05-06
US12/775,321 US20110004398A1 (en) 2009-05-06 2010-05-06 Systems and methods for providing optimal sequencing and spacing in an environment of potential wake vortices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/775,321 US20110004398A1 (en) 2009-05-06 2010-05-06 Systems and methods for providing optimal sequencing and spacing in an environment of potential wake vortices

Publications (1)

Publication Number Publication Date
US20110004398A1 true US20110004398A1 (en) 2011-01-06

Family

ID=43413110

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/775,321 Pending US20110004398A1 (en) 2009-05-06 2010-05-06 Systems and methods for providing optimal sequencing and spacing in an environment of potential wake vortices

Country Status (1)

Country Link
US (1) US20110004398A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2469411C1 (en) * 2011-06-02 2012-12-10 Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" Dataware of aircraft flight safety in vortex field
WO2012170991A1 (en) * 2011-06-10 2012-12-13 Ohio University Wake turbulence analyzer for real-time visualization, detection, and avoidance
RU2477893C1 (en) * 2011-09-30 2013-03-20 Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" Method for provision of aircraft flight vortex safety
US20150235559A1 (en) * 2012-08-30 2015-08-20 Federal State Budgetary Institution Federal Agency for Legal Protection of Military, Special and Dua A method and on-board system for ensuring the minimum longitudinal separation distance under wake turbulent conditions
GB2532125A (en) * 2014-09-26 2016-05-11 Ge Aviation Systems Llc System and method for airport control using wake duration
EP2575122B1 (en) * 2011-09-27 2017-09-13 The Boeing Company Aviation advisory
CN108198462A (en) * 2018-01-25 2018-06-22 中国民航大学 A kind of full spatial domain aircraft wake meets with risk warning system implementation method
US10055998B1 (en) 2017-08-25 2018-08-21 Airbus Operations (S.A.S.) Ground-based identification of wake turbulence encounters
US10276050B2 (en) 2016-05-19 2019-04-30 Airbus Operations (S.A.S.) Method making it possible to identify the proximity of a wake turbulence and to generate a report relative to that proximity

Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111400A (en) * 1987-03-16 1992-05-05 Yoder Evan W Automatic integrated real-time flight crew information system
US5227786A (en) * 1989-06-30 1993-07-13 Honeywell Inc. Inside/out perspective format for situation awareness displays
US5574698A (en) * 1993-12-13 1996-11-12 Micron Technology, Inc. Ram row decode circuitry that utilizes a precharge circuit that is deactivated by a feedback from an activated word line driver
US5657009A (en) * 1991-10-31 1997-08-12 Gordon; Andrew A. System for detecting and viewing aircraft-hazardous incidents that may be encountered by aircraft landing or taking-off
US6195609B1 (en) * 1993-09-07 2001-02-27 Harold Robert Pilley Method and system for the control and management of an airport
US20020004267A1 (en) * 1999-09-17 2002-01-10 Naoaki Sudo Sense amplifier circuit and semiconductor storage device
US20020042673A1 (en) * 2000-10-11 2002-04-11 Mitsubishi Denki Kabushiki Kaisha Air traffic control support system
US6381541B1 (en) * 2000-11-06 2002-04-30 Lance Richard Sadler Airplane ground location methods and systems
US6456944B1 (en) * 1998-09-30 2002-09-24 Roche Diagnostics Corporation Automatic analyzer for monitoring pipetting operations
US6694249B1 (en) * 2002-01-11 2004-02-17 Rockwell Collins Integrated surface moving map advisory system
US6751545B2 (en) * 2001-12-04 2004-06-15 Smiths Aerospace, Inc. Aircraft taxi planning system and method
US6828921B2 (en) * 2001-12-05 2004-12-07 The Boeing Company Data link clearance monitoring and pilot alert sub-system (compass)
US20070043483A1 (en) * 2005-08-19 2007-02-22 Bagge Charles J Runway incursion detection system and method for displaying a runway incursion
US7222017B2 (en) * 2004-06-17 2007-05-22 The Boeing Company Method and system for entering and displaying ground taxi instructions
US20080140269A1 (en) * 2006-12-06 2008-06-12 Universal Avionics Systems Corporation Aircraft ground maneuvering monitoring system
US20080185301A1 (en) * 2007-02-02 2008-08-07 Rick Merical Containers Intended for Moisture-Sensitive Products
US7414567B2 (en) * 2006-12-22 2008-08-19 Intelligent Automation, Inc. ADS-B radar system
US7471995B1 (en) * 2000-05-26 2008-12-30 Aerotech Research (Usa), Inc. Transmission, receipt, combination, sorting, and presentation of vehicle specific environmental conditions and hazards information
US7499795B2 (en) * 2006-06-08 2009-03-03 Airbus France Method and device for assisting in the navigation of an airplane on the ground at an airport
US20090115637A1 (en) * 2006-12-06 2009-05-07 Joachim Laurenz Naimer Aircraft-centered ground maneuvering monitoring and alerting system
US7567187B2 (en) * 2006-08-11 2009-07-28 Honeywell International Inc. Taxiway awareness and advisory system
US7592929B2 (en) * 2006-04-06 2009-09-22 Honeywell International Inc. Runway and taxiway turning guidance
US7623960B2 (en) * 2005-10-31 2009-11-24 Honeywell International Inc. System and method for performing 4-dimensional navigation
US7630829B2 (en) * 2005-09-19 2009-12-08 Honeywell International Inc. Ground incursion avoidance system and display

Patent Citations (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111400A (en) * 1987-03-16 1992-05-05 Yoder Evan W Automatic integrated real-time flight crew information system
US5227786A (en) * 1989-06-30 1993-07-13 Honeywell Inc. Inside/out perspective format for situation awareness displays
US5657009A (en) * 1991-10-31 1997-08-12 Gordon; Andrew A. System for detecting and viewing aircraft-hazardous incidents that may be encountered by aircraft landing or taking-off
US6195609B1 (en) * 1993-09-07 2001-02-27 Harold Robert Pilley Method and system for the control and management of an airport
US5574698A (en) * 1993-12-13 1996-11-12 Micron Technology, Inc. Ram row decode circuitry that utilizes a precharge circuit that is deactivated by a feedback from an activated word line driver
US6456944B1 (en) * 1998-09-30 2002-09-24 Roche Diagnostics Corporation Automatic analyzer for monitoring pipetting operations
US20020004267A1 (en) * 1999-09-17 2002-01-10 Naoaki Sudo Sense amplifier circuit and semiconductor storage device
US7471995B1 (en) * 2000-05-26 2008-12-30 Aerotech Research (Usa), Inc. Transmission, receipt, combination, sorting, and presentation of vehicle specific environmental conditions and hazards information
US20020042673A1 (en) * 2000-10-11 2002-04-11 Mitsubishi Denki Kabushiki Kaisha Air traffic control support system
US6381541B1 (en) * 2000-11-06 2002-04-30 Lance Richard Sadler Airplane ground location methods and systems
US6751545B2 (en) * 2001-12-04 2004-06-15 Smiths Aerospace, Inc. Aircraft taxi planning system and method
US6828921B2 (en) * 2001-12-05 2004-12-07 The Boeing Company Data link clearance monitoring and pilot alert sub-system (compass)
US6694249B1 (en) * 2002-01-11 2004-02-17 Rockwell Collins Integrated surface moving map advisory system
US7222017B2 (en) * 2004-06-17 2007-05-22 The Boeing Company Method and system for entering and displaying ground taxi instructions
US20070043483A1 (en) * 2005-08-19 2007-02-22 Bagge Charles J Runway incursion detection system and method for displaying a runway incursion
US7630829B2 (en) * 2005-09-19 2009-12-08 Honeywell International Inc. Ground incursion avoidance system and display
US7623960B2 (en) * 2005-10-31 2009-11-24 Honeywell International Inc. System and method for performing 4-dimensional navigation
US7592929B2 (en) * 2006-04-06 2009-09-22 Honeywell International Inc. Runway and taxiway turning guidance
US7499795B2 (en) * 2006-06-08 2009-03-03 Airbus France Method and device for assisting in the navigation of an airplane on the ground at an airport
US7567187B2 (en) * 2006-08-11 2009-07-28 Honeywell International Inc. Taxiway awareness and advisory system
US20090115637A1 (en) * 2006-12-06 2009-05-07 Joachim Laurenz Naimer Aircraft-centered ground maneuvering monitoring and alerting system
US20080140269A1 (en) * 2006-12-06 2008-06-12 Universal Avionics Systems Corporation Aircraft ground maneuvering monitoring system
US7414567B2 (en) * 2006-12-22 2008-08-19 Intelligent Automation, Inc. ADS-B radar system
US20080185301A1 (en) * 2007-02-02 2008-08-07 Rick Merical Containers Intended for Moisture-Sensitive Products

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2469411C1 (en) * 2011-06-02 2012-12-10 Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" Dataware of aircraft flight safety in vortex field
WO2012170991A1 (en) * 2011-06-10 2012-12-13 Ohio University Wake turbulence analyzer for real-time visualization, detection, and avoidance
US9709698B2 (en) 2011-06-10 2017-07-18 Ohio University Wake turbulence analyzer for real-time visualization, detection, and avoidance
EP2575122B1 (en) * 2011-09-27 2017-09-13 The Boeing Company Aviation advisory
RU2477893C1 (en) * 2011-09-30 2013-03-20 Федеральное государственное унитарное предприятие "Государственный научно-исследовательский институт авиационных систем" Method for provision of aircraft flight vortex safety
US20150235559A1 (en) * 2012-08-30 2015-08-20 Federal State Budgetary Institution Federal Agency for Legal Protection of Military, Special and Dua A method and on-board system for ensuring the minimum longitudinal separation distance under wake turbulent conditions
US9466220B2 (en) * 2012-08-30 2016-10-11 Fsbi (<<Falpiar>>) Method and on-board system for ensuring the minimum longitudinal separation distance under wake turbulent conditions
US9401092B2 (en) 2014-09-26 2016-07-26 Ge Aviation Systems Llc System and method for airport control using wake duration
GB2532125B (en) * 2014-09-26 2017-08-09 Ge Aviation Systems Llc System and method for airport control using wake duration
GB2532125A (en) * 2014-09-26 2016-05-11 Ge Aviation Systems Llc System and method for airport control using wake duration
US10276050B2 (en) 2016-05-19 2019-04-30 Airbus Operations (S.A.S.) Method making it possible to identify the proximity of a wake turbulence and to generate a report relative to that proximity
US10055998B1 (en) 2017-08-25 2018-08-21 Airbus Operations (S.A.S.) Ground-based identification of wake turbulence encounters
CN108198462A (en) * 2018-01-25 2018-06-22 中国民航大学 A kind of full spatial domain aircraft wake meets with risk warning system implementation method

Similar Documents

Publication Publication Date Title
US6804585B2 (en) Flight management system and method for providing navigational reference to emergency landing locations
US8209122B2 (en) System and method for rendering visible features of a target location on a synthetic flight display
Hoekstra et al. Designing for safety: the ‘free flight’air traffic management concept
US8255147B2 (en) Air traffic control
US8977482B2 (en) Method and apparatus for generating flight-optimizing trajectories
US10332405B2 (en) Unmanned aircraft systems traffic management
US7747360B2 (en) Aircraft cockpit display device for information concerning surrounding traffic
EP0750238A1 (en) Integrated ground collision avoidance system
US20020089432A1 (en) Vertical speed indicator and traffic alert collision avoidance system
US8378852B2 (en) Aircraft-centered ground maneuvering monitoring and alerting system
US7650232B1 (en) Trajectory specification for high capacity air traffic control
US8744738B2 (en) Aircraft traffic separation system
US7479925B2 (en) Airport runway collision avoidance system and method
US8368584B2 (en) Airspace risk mitigation system
US7411519B1 (en) System and method for predicting and displaying wake vortex turbulence
US8203465B2 (en) Filtering aircraft traffic for display to a pilot
DE60106435T2 (en) Method for calculating an evening flight travel for a plane at the horizontal level to resolve a flight traffic conflict
US6905091B2 (en) System and method for controlling the acoustic signature of a device
CA2257338C (en) Method for controlling an aerodyne for the vertical avoidance of a zone
EP1880169B1 (en) Method and device for assisting an aircraft flight control during landing approach
US9201136B2 (en) Methods and systems for presenting weather hazard information on an in-trail procedures display
US6088654A (en) Terrain anti-collision process and device for aircraft, with improved display
US20090005960A1 (en) Air Traffic Control
US6133867A (en) Integrated air traffic management and collision avoidance system
EP1147505B1 (en) Method and apparatus for automated runway selection

Legal Events

Date Code Title Description
AS Assignment

Owner name: AVIATION COMMUNIATION & SURVEILLANCE SYSTEMS LLC,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:STAYTON, GREGORY T.;BOBROWITZ, PETER;MANBERG, CHARLES C.;AND OTHERS;SIGNING DATES FROM 20100830 TO 20100902;REEL/FRAME:025016/0457

STCB Information on status: application discontinuation

Free format text: FINAL REJECTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER